<template>
<div class="login_container">
  <div class="login_box">
    <!--    头像区-->
    <div class="avtar_box">
      <img src="../assets/logo.png">
    </div>
    <!--       登录表单区 -->
    <el-form ref="loginFormRel" :model="loginFrom" :rules="loginFromRules" label-width="0px" class="login_form">
      <!--  用户名-->
      <el-form-item prop="username">
        <el-input v-model="loginFrom.username" prefix-icon="iconfont icon-user"></el-input>
      </el-form-item>

      <!-- 密码-->
      <el-form-item prop="password">
      <el-input  type="password" v-model="loginFrom.password" prefix-icon="iconfont icon-3702mima"></el-input>
      </el-form-item>

      <!-- 按钮区域-->
      <el-form-item class="btns">
        <el-button type="primary" @click="submitForm('loginFormRel')">登录</el-button>
        <el-button type="info" @click="resetForm('loginFormRel')">重置</el-button>
      </el-form-item>

    </el-form>
  </div>
</div>
</template>

<script>
export default {
  name: 'Login',
  data () {
    return {
      loginFrom: {
        username: 'Lauchem',
        password: 'Lauchem'
      },
      loginFromRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 5 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    submitForm (formName) {
      this.$refs[formName].validate(async valid => {
        if (valid) {
          // eslint-disable-next-line no-unused-vars
          const { data: res } = await this.$http.post('/user/login', this.loginFrom)
          if (res.returnCode !== 200) return this.$message.error(res.returnMsg)
          this.$message.success(res.returnMsg)
          // 保存token在客户端的sessionStorage
          window.sessionStorage.setItem('token', res.data.token)
          // 页面跳转
          this.$router.push('/home')
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    resetForm (formName) {
      this.$refs[formName].resetFields()
    }
  }
}
</script>

<style lang="less" scoped>
  .login_container{
    background-color: #2b4b6b;
    height: 100%;
  }
  .login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position:  absolute;
    left: 50%;
    top: 35%;
    transform: translate(-50%);
  }
  .avtar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img{
      height: 100%;
      width: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
  .btns{
    display: flex;
    justify-content: center;

  }
  .login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;

  }
</style>
